What is China's one-child policy?
Nearly three decades ago, the booming Chinese population caused the government to cut the birthrate by limiting most couples to one child. The plan worked, but at what expense?
Is there such a thing as a free credit report?
You've seen TV commercials and pop-up ads promising free credit reports. But are these offers legit? And if credit reports are free, why don't more people request them?
How Gem Hunting Works
Remember the thrill of discovering that one-of-a-kind rock in the sandbox when you were a child? Gem hunting provides that same excitement, except these treasures may be worth thousands.
IM and E-mail: Which is more popular and why?
Instant messaging and e-mail are useful communication tools. And you're either an IM fan or a staunch e-mail loyalist. So which is more popular and why?
How Crying Works
Everyone cries. For some it's an emotional response, while others just shed tears when chopping onions. Are tears a way for us to cleanse our bodies?
How IARPA Works
Described by government officials as "disruptive," this research and technology organization is supposed to change the face of U.S. spying. Is IARPA a real-life James Bond Q Branch?
One-child Policy
Free Credit Report
Gem Hunting
IM Versus E-mail
Crying
IARPA
Why does orange juice taste bad after you brush your teeth?
Why does the combination of orange juice and toothpaste have to taste so awful? Why can't your sense of taste resolve the problem?
How Submarines Work
Not so long ago, the world's naval forces worked entirely above water. But all that changed with the addition of the submarine to the standard naval arsenal.
How Brain-computer Interfaces Work
Imagine being able to transmit signals that would allow a blind person to see directly into his or her brain. For severely disabled people, the brain-computer interface could be the most important technological breakthrough in decades.
How the Bugatti Veyron Works
Welcome to the height of high performance: The Bugatti Veyron's 16-cylinder monster engine produces 1,001 horsepower for a top speed of more than 250 mph. And it's a passenger car.
Why is the Google algorithm so important?
The Google algorithm ranks high among the world's best-kept secrets. It involves a complex formula, the patented PageRank system and some pretty picky spiders.
How Flying Cars Will Work
Bogged down in bumper-to-bumper traffic, have you ever daydreamed about your car taking off and flying over the road? Flying cars seem like science fiction but may not be too far off.
Orange Juice
Submarines
Brain Computer
Bugatti Veyron
Google Algorithm
Flying Cars
How Criminal Recycling Works
In the past year, more than 2,500 of Philadelphia's manhole covers and storm drain and street grates have been stolen by people who sell them on the scrap market. What else do criminal recyclers steal?
How Viagra Works
A recent study published in the Journal of the American Medical Association found that women whose sexual performance had been affected by taking antidepressants benefitted by taking Viagra. How does Viagra help erectile dysfunction?
How Stun Guns Work
A Louisiana police officer tasered a handcuffed man nine times -- resulting in his death -- after arresting him on a cocaine charge. What effect does a stun gun have on a person's body?
How Hurricanes Work
As tropical storm Dolly quickly gains strength, residents of Texas and parts of Mexico stock up on plywood, flashlights and gasoline. How much havoc can a hurricane's wind gusts create?
How the Smart Car Works
In response to high gas prices and a shift in consumer taste, the Ford Motor Company is converting three of its North American assembly plants from trucks to smaller cars. What's under the hood of the incredibly compact Smart Car?
How Wind Power Works
With one of the most recognized symbols of the Netherlands facing extinction, the Dutch government authorized an $80 million restoration program of 120 windmills. Is wind power the cleanest energy source out there?
Criminal Recycling
Viagra
Stun Guns
Hurricanes
Smart Car
Wind Power
